vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanInterfaceStateChangeListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.netvirt.elan.internal;
   9
  10
  11 import java.math.BigInteger;
  12 import java.util.List;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  16 import org.opendaylight.genius.datastoreutils.DataStoreJobCoordinator;
  17 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  18 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  19 import org.opendaylight.netvirt.elan.ElanException;
  20 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  21 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.TunnelList;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.tunnel.list.InternalTunnel;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 public class ElanInterfaceStateChangeListener
  35         extends AsyncDataTreeChangeListenerBase<Interface, ElanInterfaceStateChangeListener> implements AutoCloseable {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(ElanInterfaceStateChangeListener.class);
  38
  39     private final DataBroker broker;
  40     private final ElanInterfaceManager elanInterfaceManager;
  41
  42     public ElanInterfaceStateChangeListener(final DataBroker db, final ElanInterfaceManager ifManager) {
  43         super(Interface.class, ElanInterfaceStateChangeListener.class);
  44         broker = db;
  45         elanInterfaceManager = ifManager;
  46     }
  47
  48     public void init() {
  49         registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  50     }
  51
  52     @Override
  53     protected void remove(InstanceIdentifier<Interface> identifier, Interface delIf) {
  54         LOG.trace("Received interface {} Down event", delIf);
  55         String interfaceName =  delIf.getName();
  56         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(broker, interfaceName);
  57         if (elanInterface == null) {
  58             LOG.debug("No Elan Interface is created for the interface:{} ", interfaceName);
  59             return;
  60         }
  61         NodeConnectorId nodeConnectorId = new NodeConnectorId(delIf.getLowerLayerIf().get(0));
  62         BigInteger dpId = BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
  63         InterfaceInfo interfaceInfo = new InterfaceInfo(dpId, nodeConnectorId.getValue());
  64         interfaceInfo.setInterfaceName(interfaceName);
  65         interfaceInfo.setInterfaceType(InterfaceInfo.InterfaceType.VLAN_INTERFACE);
  66         interfaceInfo.setInterfaceTag(delIf.getIfIndex());
  67         String elanInstanceName = elanInterface.getElanInstanceName();
  68         ElanInstance elanInstance = ElanUtils.getElanInstanceByName(broker, elanInstanceName);
  69         DataStoreJobCoordinator coordinator = DataStoreJobCoordinator.getInstance();
  70         InterfaceRemoveWorkerOnElan removeWorker = new InterfaceRemoveWorkerOnElan(elanInstanceName, elanInstance,
  71             interfaceName, interfaceInfo, true, elanInterfaceManager);
  72         coordinator.enqueueJob(elanInstanceName, removeWorker, ElanConstants.JOB_MAX_RETRIES);
  73     }
  74
  75     @Override
  76     protected void update(InstanceIdentifier<Interface> identifier, Interface original, Interface update) {
  77         LOG.trace("Operation Interface update event - Old: {}, New: {}", original, update);
  78         String interfaceName = update.getName();
  79         if (update.getType() == null) {
  80             LOG.trace("Interface type for interface {} is null", interfaceName);
  81             return;
  82         }
  83         if (update.getType().equals(Tunnel.class)) {
  84             if (!original.getOperStatus().equals(Interface.OperStatus.Unknown)
  85                     && !update.getOperStatus().equals(Interface.OperStatus.Unknown)) {
  86                 if (update.getOperStatus().equals(Interface.OperStatus.Up)) {
  87                     InternalTunnel internalTunnel = getTunnelState(interfaceName);
  88                     if (internalTunnel != null) {
  89                         try {
  90                             elanInterfaceManager.handleInternalTunnelStateEvent(internalTunnel.getSourceDPN(),
  91                                     internalTunnel.getDestinationDPN());
  92                         } catch (ElanException e) {
  93                             LOG.error("Failed to update interface: " + identifier.toString(), e);
  94                         }
  95                     }
  96                 }
  97             }
  98         }
  99     }
 100
 101     @Override
 102     protected void add(InstanceIdentifier<Interface> identifier, Interface intrf) {
 103         LOG.trace("Received interface {} up event", intrf);
 104         String interfaceName =  intrf.getName();
 105         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(broker, interfaceName);
 106         if (elanInterface == null) {
 107             if (intrf.getType() != null && intrf.getType().equals(Tunnel.class)) {
 108                 if (intrf.getOperStatus().equals(Interface.OperStatus.Up)) {
 109                     InternalTunnel internalTunnel = getTunnelState(interfaceName);
 110                     if (internalTunnel != null) {
 111                         try {
 112                             elanInterfaceManager.handleInternalTunnelStateEvent(internalTunnel.getSourceDPN(),
 113                                 internalTunnel.getDestinationDPN());
 114                         } catch (ElanException e) {
 115                             LOG.error("Failed to add interface: " + identifier.toString(), e);
 116                         }
 117                     }
 118                 }
 119             }
 120             return;
 121         }
 122         InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils
 123                 .getElanInterfaceConfigurationDataPathId(interfaceName);
 124         elanInterfaceManager.add(elanInterfaceId, elanInterface);
 125     }
 126
 127     @Override
 128     public void close() throws Exception {
 129
 130     }
 131
 132     public  InternalTunnel getTunnelState(String interfaceName) {
 133         InternalTunnel internalTunnel = null;
 134         TunnelList tunnelList = ElanUtils.buildInternalTunnel(broker);
 135         if (tunnelList != null && tunnelList.getInternalTunnel() != null) {
 136             List<InternalTunnel> internalTunnels = tunnelList.getInternalTunnel();
 137             for (InternalTunnel tunnel : internalTunnels) {
 138                 if (tunnel.getTunnelInterfaceName().equalsIgnoreCase(interfaceName)) {
 139                     internalTunnel = tunnel;
 140                     break;
 141                 }
 142             }
 143         }
 144         return internalTunnel;
 145     }
 146
 147     @Override
 148     protected InstanceIdentifier<Interface> getWildCardPath() {
 149         return InstanceIdentifier.create(InterfacesState.class).child(Interface.class);
 150     }
 151
 152
 153     @Override
 154     protected ElanInterfaceStateChangeListener getDataTreeChangeListener() {
 155         return this;
 156     }
 157
 158 }